Motion for an extension of time to file the opening briefs on the merits granted. The time to file the joint appendix and petitioners' brief on the merits is extended to and including August 28, 2018. The time to file respondent's brief on the merits is extended to and including October 16, 2018.

Motion of the Acting Solicitor General for leave to participate in oral argument as amicus curiae and for divided argument GRANTED. Justice Kavanaugh took no part in the consideration or decision of this motion.